I spent all of yesterday investigating and fixing dependency issues outside
of SQL. I really regret the decision to write a test for this. Would it be
acceptable for us to put testing with the output jar behind a flag like we
do for failOnWarning?

On Wed, May 23, 2018 at 5:21 PM Kenneth Knowles <k...@google.com> wrote:

> What's the status of moving it forward? Is it a ton of work / too much to
> do quickly?
>
> On Wed, May 23, 2018 at 9:11 AM Andrew Pilloud <apill...@google.com>
> wrote:
>
>> To loop the list in on discussions going on in
>> https://github.com/apache/beam/pull/5443: our normal tests don't run
>> against the shaded jars. Gradle can run the tests against the shaded jars,
>> but a bunch fail due to dependency issues. It's not just SQL.
>>
>> Andrew
>>
>> On Mon, May 21, 2018 at 11:35 AM Lukasz Cwik <lc...@google.com> wrote:
>>
>>> Shading requires two pieces of information:
>>> 1) Which dependencies should be part of the shaded jar (controlled by
>>> includes/excludes)
>>> 2) How to relocate code within those dependencies (controlled by
>>> relocations)
>>>
>>> The reason why the exclude(".*") exists is because typically it is an
>>> error to produce a shaded package with dependencies which are not
>>> relocated. When libraries do this, it causes a lot of
>>> NoClassFound/NoMethodFound errors for users since a user can't know which
>>> version of a dependency they are actually getting (the one that was bundled
>>> part of your jar or the one they depend on as a library). Only applications
>>> should ever really do this, libraries should always repackage all their
>>> code to prevent such errors.
>>>
>>> Note that in the SQL package, you can provide your own shadowClosure to
>>> the applyJavaNature() which means that the default won't apply. For
>>> example:
>>> https://github.com/apache/beam/blob/a3ba6a0e8de3ae72b8fc6fc6038eb9dc725f092e/sdks/java/harness/build.gradle#L20
>>> and remove the 'DEFAULT_SHADOW_CLOSURE <<'
>>>
>>>
>>> On Mon, May 21, 2018 at 10:26 AM Andrew Pilloud <apill...@google.com>
>>> wrote:
>>>
>>>> The issue SQL is seeing is caused by a default dependency of
>>>> exclude(".*") added in build_rules.gradle. This breaks the normal method of
>>>> building shadow jars as everything must be explicitly included. SQL
>>>> explicitly added calcite to the jar, but not calcite's dependencies. I've
>>>> been told this is the desired behavior as we want to ensure everything
>>>> included is relocated.
>>>>
>>>> I don't know much about gradle, but this seems fragile. Is it possible
>>>> to have all dependencies automatically relocated so we don't need the
>>>> exclude(".*") rule?
>>>>
>>>> Andrew
>>>>
>>>> On Thu, May 17, 2018 at 7:41 PM Andrew Pilloud <apill...@google.com>
>>>> wrote:
>>>>
>>>>> Yep, I added the issue as a blocker.
>>>>> https://issues.apache.org/jira/projects/BEAM/issues/BEAM-4357
>>>>>
>>>>> On Thu, May 17, 2018, 6:05 PM Kenneth Knowles <k...@google.com> wrote:
>>>>>
>>>>>> This sounds like a release blocker. Can you add it to the list?
>>>>>> (Assign fix version on jira)
>>>>>>
>>>>>> Kenn
>>>>>>
>>>>>> On Thu, May 17, 2018, 17:30 Lukasz Cwik <lc...@google.com> wrote:
>>>>>>
>>>>>>> Typically we have a test block which uses a configuration that has
>>>>>>> the shadow/shadowTest configurations on the classpath instead of the
>>>>>>> compile/testCompile configurations. The most common examples are 
>>>>>>> validates
>>>>>>> runner/integration tests for example:
>>>>>>>
>>>>>>> https://github.com/apache/beam/blob/0c5ebc449554a02cae5e4fd01afb07ecdb0bbaea/runners/direct-java/build.gradle#L84
>>>>>>>
>>>>>>> On Thu, May 17, 2018 at 3:59 PM Andrew Pilloud <apill...@google.com>
>>>>>>> wrote:
>>>>>>>
>>>>>>>> I decided to try our new JDBC support with sqlline and discovered
>>>>>>>> that our SQL shaded jar is completely broken. As
>>>>>>>> in java.lang.NoClassDefFoundError all over the place. How are we 
>>>>>>>> testing
>>>>>>>> the output jars from other beam packages? Is there an example I can 
>>>>>>>> follow
>>>>>>>> to make our integration tests run against the release artifacts?
>>>>>>>>
>>>>>>>> Andrew
>>>>>>>>
>>>>>>>

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